The syslog-alerts-host property defines the host
name of the syslogd daemon to which the messages are sent.
The syslog-alerts-facility property is read-only and causes
messages to be sent to the user category in the system
log.

Enable alert messages to be logged to the syslogd daemon.

$ dpconf set-server-prop -h host -p port syslog-alerts-enabled:true

(Optional) Send alert messages to the syslogd daemon
on a different host.